WordWeb Online

1. The state of being linked together as in a chain; union in a linked series
    
2. The linking together of a consecutive series of symbols, events or ideas etc
   "it was caused by an improbable concatenation of circumstances"
    
3. A series of things depending on each other as if linked together
   "a complicated concatenation of circumstances";
   - chain
    
4. The act of linking together as in a series or chain

Derived forms: concatenations

Type of: connectedness, connection, connexion [Brit], joining, link, series

Encyclopedia: Concatenation